2016 Fiscal Year Final Research Report
Hierarchically-nanostructured carbon particles for energy resource and storage applications
| Project/Area Number |
15K18257
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Hiroshima University |
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Principal Investigator |
Balgis Ratna 広島大学, 工学研究院, 助教 (70731917)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | Aerosol process / Nanostructured carbon / Energy resources / Energy storages / Polymer |
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| Outline of Final Research Achievements |
In this study, the effects of various carbon nanostructures on the catalytic performances of carbon supported platinum (Pt/C) electrocatalysts were evaluated experimentally and numerically. The Pt/C catalysts were prepared using a hybrid method involving the preparation of dense, hollow, and porous carbon particle via aerosol spray pyrolysis followed by microwave-assisted Pt deposition. Electrochemical surface area of porous Pt/C catalyst was more than twice than those of hollow or dense Pt/C. The effects of pore size on electrocatalysis were also studied. The results showed the importance of a balance between mesopores and macropores for effective catalysis with a high charge transfer rate. A fluid flow model showed that good oxygen transport contributed to the catalytic activity. Furthermore, the addition of N doping to porous carbon may further increase the electrocatalytic performance. While, the formation of hollow spherical carbon gave a good capacitance performance.
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| Free Research Field |
Engineering
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